Enhance the security of your fastening applications with our External Tooth Lock Washer. This DIN 6797A standardized washer, crafted from durable steel with a corrosion-resistant zinc coating, ensures reliable performance. With an outside diameter of 7mm and a slim thickness of 0.5mm, it's designed for precision. The internal diameter of 3.7mm accommodates M3.5 bolts, providing a perfect fit. This washer's unique external tooth design offers superior grip, preventing loosening due to vibration or torque. Rest assured of its quality, as it's meticulously crafted to meet industrial standards. Upgrade your fastening system with this essential component, guaranteeing stability and longevity in your projects.